<template>
  <!-- 新建文件夹对话框 -->
  <el-dialog
    title="新建文件夹"
    :visible.sync="visible"
    :close-on-click-modal="false"
    width="580px"
    @close="handleDialogClose"
  >
    <el-form
      ref="addFolderForm"
      class="add-folder-form"
      :model="form"
      :rules="formRules"
      label-width="100px"
      label-position="top"
    >
      <el-form-item label="文件夹名称" prop="fileName">
        <el-input
          v-model="form.fileName"
          placeholder="请输入文件夹名称"
          type="textarea"
          :autosize="{ minRows: 3, maxRows: 3 }"
          maxlength="255"
          show-word-limit
          @keydown.enter.native.prevent
        />
      </el-form-item>
    </el-form>
    <div slot="footer" class="dialog-footer">
      <el-button @click="handleDialogClose">取 消</el-button>
      <el-button
        type="primary"
        :loading="sureBtnLoading"
        @click="handleDialogSure('addFolderForm')"
      >确 定</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { createFold } from '@/api/file/netFile'

export default {
  name: 'AddFolderDialog',
  data() {
    const validateFileName = (rule, value, callback) => {
      const fileNameReg = new RegExp(`[\\\\/:*?"<>|]`)
      if (value && fileNameReg.test(value)) {
        callback(new Error(`文件夹名称不能包含下列任何字符：\\/:*?"<>|`))
      } else {
        callback()
      }
    }
    return {
      visible: false, //  对话框是否可见
      form: {
        fileName: ''
      },
      formRules: {
        fileName: [
          { required: true, message: '请输入文件夹名称', trigger: 'blur' },
          { validator: validateFileName, trigger: ['blur', 'change'] }
        ]
      },
      sureBtnLoading: false
    }
  },
  watch: {
    /**
		 * 监听对话框打开、关闭状态
		 */
    visible(newValue) {
      if (newValue) {
        // 打开时绑定回车事件
        document.addEventListener('keyup', this.handleAddKeyupEnter)
      } else {
        // 关闭时移除回车事件
        document.removeEventListener('keyup', this.handleAddKeyupEnter)
      }
    }
  },
  methods: {
    /**
		 * DOM 绑定回车事件
		 * @description 回车触发新增文件夹事件
		 * @param {event} event 事件
		 */
    handleAddKeyupEnter(event) {
      if (event.key === 'Enter') {
        this.handleDialogSure('addFolderForm')
      }
    },
    /**
		 * 取消按钮点击事件 & 对话框关闭的回调
		 * @description 关闭对话框，重置表单
		 */
    handleDialogClose() {
      this.$refs['addFolderForm'].resetFields()
      this.visible = false
      this.callback('cancel')
    },
    /**
		 * 确定按钮点击事件
		 * @description 校验表单，校验通过后调用新建文件夹接口
		 * @param {string} formName 表单ref值
		 */
    handleDialogSure(formName) {
      this.sureBtnLoading = true
      this.$refs[formName].validate((valid) => {
        if (valid) {
          createFold({
            fileName: this.form.fileName,
            filePath: this.filePath
          })
            .then((res) => {
              this.sureBtnLoading = false
              if (res.success) {
                this.$message.success('文件夹创建成功')
                this.$refs[formName].resetFields()
                this.visible = false
                this.callback('confirm')
              } else {
                this.$message.warning(res.message)
              }
            })
            .catch(() => {
              this.sureBtnLoading = false
            })
        } else {
          this.sureBtnLoading = false
          return false
        }
      })
    }
  }
}
</script>
